I was not in the group "operator" -- so I added myself Below is the result of the dd if ... command:
GANDALF# dd if=/dev/rcd0d bs=2048 count=1 | hexdump -C dd if=/dev/rcd0d bs=2048 count=1 | hexdump -C 00000000 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| * 00000800 1+0 records in 1+0 records out 2048 bytes transferred in 1.471 secs (1392 bytes/sec) On Mon, Mar 8, 2021 at 3:47 AM <[email protected]> wrote: > > On Sun, Mar 07, 2021 at 06:31:32PM -0500, Todd Gruhn wrote: > > All I know that VLC cant talk to the DVD/CD drive. > > > > I have been using commercially produced DVDs > > > > I have DVD-RW -- can something be done with that? > > > > I installed 2 other mediaplayers -- they complain about the same thing. > > So, this is not about the program used, but probably about the > permissions on the device node in the file system. > > ls -l /dev/cd0d should show > henrietta$ ls -l /dev/cd0d > brw-r----- 1 root operator 6, 3 Jan 13 2012 /dev/cd0d > > Another test would be > > dd if=/dev/rcd0d bs=2048 count=1 | hexdump -C > > (assuming this is your only CD-like device). You can check > by reading through /var/run/dmesg.boot > > You should either see a dump of the first block on the medium, > possibly all zeros, or an error messages about access permissions. > > Did you run your media players as an unpriviledged user? > Does running the above dd program as root help? > > If yes, add yourself to the group "operator" in /etc/group, > re-login, and all should be fine. > > Possibly chmod g+w /dev/cd0* if you need write permission to > that drive, too. > > Regards, > -is
